Event Details
User Activity->Account Management->Query Information->EventID 4797 - An attempt was made to query the existence of a blank password for an account.
EventID 4797 - An attempt was made to query the existence of a blank password for an account.
 Sample: 
An attempt was made to query the existence of a blank password for an account.
  
  Subject:
   Security ID:        %1
   Account Name:        %2
   Account Domain:        %3
   Logon ID:        %4
  
  Additional Information:
   Caller Workstation:    %5
   Target Account Name:    %6
   Target Account Domain:    %7"
Log Type: Windows Event Log
 Uniquely Identified By:
Log Name: Security
Filtering Field Equals to Value
OSVersion Windows Vista (2008)
Windows 7 (2008 R2)
Windows 8 (2012)
Windows 8.1 (2012 R2)
Windows 10 (2016)
Category Account Management
Source Microsoft-Windows-Security-Auditing
TaskCategory User Account Management
EventId 4797
Field Matching
FieldDescriptionStored inSample Value
When At what date and time a user activity originated in the system. DateTime 10.10.2000 19:00:00
Who Account or user name under which the activity occured. Subject: Account Name ALebovsky
What The type of activity occurred (e.g. Logon, Password Changed, etc.) "Query blank password" Query blank password
Where The name of the workstation/server where the activity was logged. Computer DC1
Where From The name of the workstation/server where the activity was initiated from. Additional Information: Caller Workstation
Severity Specify the seriousness of the event. "Medium" Medium
WhoDomain Subject: Account Domain LOGISTICS
WhereDomain -
Whom Account or user name being managed. Additional Information: Target Account Name
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